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  #1  
Old 06-05-2015, 08:20 AM
powerhouse powerhouse is offline
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wrong sand paper HELP

I started wet sanding my boat with 2000 paper. Over night my dog stopped by my boat and completely destroyed what paper I had left. So I run down to my local hardware store and purchase some 400 that I thought felt just as smooth as the 2000 and it completely scratched my boat. Someone please help me with this. Is it destroyed or can it be fixed.
Your input is greatly appreciated.
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  #2  
Old 06-05-2015, 08:24 AM
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paco_06 paco_06 is online now
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Are you using water? "Wet sanding" 400 is a little too course, I've heard of a few people using as low as 500 in severe cases. Get some 1000, 1500, then back to 2000. Hopefully there's not a big area to fix.
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Old 06-05-2015, 08:42 AM
powerhouse powerhouse is offline
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Thanks paco
I hit one whole side and the back. I thought about doing that but didn't know if any one on here had made that mistake before.
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Old 06-05-2015, 09:49 AM
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Keith2230 Keith2230 is offline
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Ouch! Like Paco said you should be able to get the scratches out with progressively finer sanding. After that hit it up with marine compound on a low speed buffer, polish and then wax and it will look amazing.
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Old 06-05-2015, 10:03 AM
Roman Roman is offline
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Quote:
Are you using water? "Wet sanding" 400 is a little too course, I've heard of a few people using as low as 500 in severe cases. Get some 1000, 1500, then back to 2000. Hopefully there's not a big area to fix.
Yikes. Ive been using 220 on mine in some spots lol. Ive got a mess on my hands though.

Your fine. Just dont make the mistake again. go 600, 800, 1000, 1500 then polish if you really want, switching sanding directions each time. Or jump straight to 1000 then polish and see how that works.

Your sense of touch must be awefull. 400 and 2000 are very different.
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  #6  
Old 06-05-2015, 10:36 AM
powerhouse powerhouse is offline
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I'm trying the 1500 to 2000 and compound then polish to see how that works.

Roman your right about the sense of touch I guess its from hard work all my life...lol
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Old 06-05-2015, 12:14 PM
Roman Roman is offline
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might not be a bad idea to pick up 600 or 800, give yourself a stepping stone from 400 to 1000
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  #8  
Old 06-05-2015, 02:00 PM
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Thrall Thrall is offline
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From 400 you're doing nothing with 1500. If you don't go up incrementally you'll do many times more work. Getting 400 scratches out over a large area will be a chore at that.
You should be fine but hopefully you don't test out how thick the gel is.
Btw NEVER sand outside corners. Or be very careful if you already have.
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  #9  
Old 06-05-2015, 03:25 PM
powerhouse powerhouse is offline
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Thrall
I'm finding out the hard way that not going up in increments isn't working. I guess I should start over and it should come out ok. Lucky for me I didn't really get heavy on the 400 so I should be ok on the gel.
Thanks to all of you that have help. When I get done and think its worthy of posting a pic, i'll put one up.
Thanks again
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  #10  
Old 06-07-2015, 12:58 AM
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Thrall Thrall is offline
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What color?
If it's white or light colored, you could get away with 600, 1000, maybe 1200 or heavy cut compound and polish. If you sand 1200 then med cut compound.
If it's a dark color, may need to go up to 1200-1500 before compounding just because you can see every imperfection in dark colors.
I'd perfect your steps, number of passes etc up to polish on a small area first so you're not wasting time on it.
A good technique is to sand opposite direction each time you go up in grit. Then shine it with a light after wiping off the residue to make sure you got out the lower grit scratches. If you can see them, hit it again.
Gel is waaaay thicker than paint and you will be fine sanding it.
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